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Robert Coli commented on CASSANDRA-6419: ---------------------------------------- FWIW, this looks like a single case of the systemic issue described in CASSANDRA-4967. > Setting max_hint_window_in_ms explicitly to null causes problems with JMX view > ------------------------------------------------------------------------------ > > Key: CASSANDRA-6419 > URL: https://issues.apache.org/jira/browse/CASSANDRA-6419 > Project: Cassandra > Issue Type: Bug > Components: Config > Reporter: Nate McCall > Assignee: Nate McCall > Priority: Minor > Fix For: 1.2.14, 2.0.4 > > Attachments: 6419-1.2.patch, 6419-2.0.patch > > > Setting max_hint_window_in_ms to null in cassandra.yaml makes the > StorageProxy mbean inaccessable. > Stack trace when trying to view the bean through MX4J: > {code} > Exception during http request > javax.management.RuntimeMBeanException: java.lang.NullPointerException > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:839) > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:852) > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:651) > at > com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678) > at > mx4j.tools.adaptor.http.MBeanCommandProcessor.createMBeanElement(MBeanCommandProcessor.java:119) > at > mx4j.tools.adaptor.http.MBeanCommandProcessor.executeRequest(MBeanCommandProcessor.java:56) > at > mx4j.tools.adaptor.http.HttpAdaptor$HttpClient.run(HttpAdaptor.java:980) > Caused by: java.lang.NullPointerException > at > org.apache.cassandra.config.DatabaseDescriptor.getMaxHintWindow(DatabaseDescriptor.java:1161) > at > org.apache.cassandra.service.StorageProxy.getMaxHintWindow(StorageProxy.java:1506) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:75) > at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:279) > at > com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112) > at > com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46) > at > com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237) > at > com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:83) > at > com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:206) > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647) > ... 4 more > Exception during http request > {code} -- This message was sent by Atlassian JIRA (v6.1.5#6160)